public class User1106
{
    private string _username;
    private string _password;

    public string Username
    {
        get => _username;
        set => _username = value;
    }

    public string Password
    {
        get => _password;
        set => _password = value;
    }

    public User1106() { }

    public User1106(string username, string password)
    {
        _username = username;
        _password = password;
    }
}